Joiix fraser



(No Model.)

J. FRASER.

VEHICLE BRAKE.

Patented Mang, 5, 1889.

' clevis below the tongue, as bestl illustrated in lhvrrnn diaree! arrivi OtticaE .lOllN FRASER, OF SUIOOE, ONTARIO, CAADA, ASSIGNOR TO lllMSEliF 'AND G, A. VPPER, OF SAME PLACE.

BRAKE..

SPECIFICATION forming part of Letters Patent N 0. 398,958, dated March 5, 1889.

Application tiled October 30, 1838. Serial No. 289,494. (No model.) Patented in Canada October 18, 189:8, No. 29,984.

To (MZ whom, iv' 71mg concern:

le it known that I, JOHN FRASER, of simcee, in the `I-.hoi'ince ot' Ontario an d Dominion of Canada, have invented new and useful lmprovcments in Vehicle-Brakes, (for which l have obtained a patent in Dominion of Ganada, No. 20,084, October 13, 1888,) of which the following is a. full, clear, and exactdeeription.

My invention relates to an improvement in vehicle-brakes, and has for its obj eet to provide a brake .of simple, durable, and effect-ive construction, and capable ot automatic application; and the further object of the invention is to provide a brake which will not only look the wheels when the vehicle is descending a hill, but which will also lock the wheels in the event the vehicle should be stopped in ascending a hill.

The inventiiiin consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying d ra win gs, formin a part olf this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure l isa plan view of the brake applied to the front wheels of a vehicle. Fig. 2 is a longitiulinal section taken partially on line .1: a" of Fig. l. Fig. 3 is a partial side eleva tion ot' a wheel, illustrating the brake-shoe in position to lock the said vwheel in ascending a hill; and Fig. l is a transverse section on line y 1,1/ ot' Fig. i.

The tongue ld ot the vehicle is secured in any approved manner between the 'forward extremities ot the forward hounds, ll, which hounds are connected at the back by a crosshar, 1i. A elevis, lil, secured to the torward end of the tongue l0, and a vertical yoke7 l-l, provided with eyes at Aits ends, is pivoted upon the tongue through the medium of a bolt, l5, passing through the yoke and the Fig. l.

Forward ot the axle lli a lever, l?, is cent-rally pivoted to the outer side oi' each section ot' the forward hounds, as illustrated in F ig. l, the said levers being provided with an aperture, 1S, at the top, and a similar aperture, lt), at the bottom end. A rod, 20, is pivoted to the lower end ot' the yoke lt, which rod extends rearwardly beneath the tongue l0, passing through an eye, 2l. Rods or links and 23 are attached to the rear extremity ot' the rod 20, which links or rods are carried rearwardly to a connection with the lower ends of the levers 17, as best illustrated in Fig. l.

The tongue 10 is provided with a slot, 2l, in which the bolt 25, carrying the doubletree 2G, is held to reciprocate. The main arm of the doubletree is provided with a staple from which two lengths of chain 27 are projected, the said chain being attached to upper links or rods, 28, which upper links or rods are connected to the upper extremities of the said levers l. lf preferred, instead ot' the tongue being slotted as shown, the slot may be made in the doubletree.

A brake-arm, 2U, is pivoted at one end to each extremity of the cross-bar l2, and a brakeshaft, .30, is cent-rally passed through the said brake-arms 29 and held in position bymea-ns of collars 3l. The lower ends of the brahearms 2) are connected with the lower ends of the side levers, 17, by rods or chains 39. Upon the extremities of the brakeshaft 30 a brake-shoe, is rigidly mounted, which brake-shoe is provided with a concave tace, 34, and an opposing convex face, 35, the shaft SO being made to pass through the shoe at or nea-r the upper or convex end, as best illustrated in Fig. The lower end of the shoe 33 is made to terminate in a point, to which point a jack-chain, 3(5,is secured. Both the concave and convex faces of the brakeshoe are covered with leather or other similar material. The brake-shoes normally are held out ot engagement with the wheels.

It is evident that when the horses hold back and draw upon the upper end of the yoke li the brake-arms 99 are drawn forward, and the brake-shoes are consequently brought in frietional contact with the rear ol' the forward wheels, and that when the horses start fon ward the doubletrees will also move forward, drawing the upper ends of the leversl in the same direction, which movement will carry the brake-arms 29 outward and relieve the wheel from contact with the ln'ake-shoes.

IOO

W' hen the wheels are moved forward, the brake-shoe will roll lto such an extent as to bring the concave face of the shoe flush with the tire of the wheel. Vhen backing up, the reverse :motion of the wheels rolls the said concave face back and brings the top or convex face with the shaft toward the wheel. The block, however, does not in this position bind the wheel, as the force at the neck-yoke is exhausted.

To block the wheels in going up a hill, the j ack-chain attached to the brake is hooked in the stake ordinarily attached to the bolster of the vehicle; then the driver with a slight pull upon the chain can turn the brake over with the convex face up, so that it will be brought in decided contact with the wheel. Both brakes will turn together, as they are both mounted on the same shaft. When the vehi cle stops and the wheels begin to move back, the convex face of the brake-slice binds the wheels as the outward movement of the shaft 30 is limited by the connecting rods or links 32.

I desire it to be distinctly understood that while I have illustrated the brake as used in connection with a farm-wagon it may be employed in connection with 'any type of vehi* cle.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination, with a vehicle having a yoke pivoted on the forward end of its tongue, of pivoted levers, reversible brake-shoes pivoted in said levers, and a connection between the said yoke and the lower ends of the levers, substantially as described.

2. The combination, with a vehicle having a yoke pivoted on the forward end of it-s tongue, of pivoted levers,a shaft loosely mounted in the said levers, brake-shoes having opposing concave and convex bearingfaces and scoured to the ends of the said shaft, and a connection between the lower ends of the levers and yoke, substantially as herein shown and described.

In a vehicle-brake, the conibinat-ion,with the forward hounds, the tongue, and a doubletree having a sliding movement 0n the tongue, of a yoke pivoted on the forward end of the tongue, levers pivoted to the hounds in rear of the axle, a shaft loosely mounted in said levers, brake-shoes having opposing concave and convex bearing-faces, levers pivoted to the hounds in front of the axle and having their upper ends connected to the doubletree and their lower ends to the yoke and to the levers in rear of the axle, substantially as herein shown and described.

4t. In a vel1icle-brake,tl1e coiiibiiiat-ion,\vith the tongue, of the elevis 13, secured to the forward end of the tongue, and the yoke 14, through which the tongue projects, provided with eyes at its ends and pivoted to the clevis by the bolt l5 passing through the yoke and .clevis below the tongue, substantially as herein shown and described.

JOHN FRASER.

XV itn esses: e

E. G. MENTER, GEO. L. REID. 

